"over a timeframe" is a correct and usable phrase in written English.
This phrase typically refers to a period of time, often a long amount of time, during which something happened or will happen. For example, "Over a timeframe of five years, the company was able to lower their emissions by 40%."
In the mobile space most full-fledged premium-price projects should currently be doable for between $500k and $1.5m over a timeframe of 7-15 months, a key factor of which is ensuring they look and play great.
Visitors of the site can compare up to three brands with national broadcast and cable TV spots against each other – after registering – to determine which one most effectively retains viewers over a timeframe ranging from one week to three months.
This trek is one of the longest hiking-only footpaths in the world, taking you through 14 states, from Georgia to Maine, over a timeframe of five to seven months!
We performed an analysis of costs and effects of universal and selective MRSA screening at hospital admission, combined with isolation of identified MRSA carriers, over a timeframe of 15 years, using a 3% annual discount rate [17].
Criterion A measures extinction risk based on exceeding a threshold of population decline (30% for Vulnerable, 50% for Endangered, and 80% for Critically Endangered) over a timeframe of three generation lengths, a measure of reproductive turnover rate, in the recent past.
We therefore analysed survival over a timeframe relevant to evolutionary fitness in this species.
"There's got to be a bit of give and take over a limited timeframe to see if the problems can be dealt with in an orderly rather than disruptive way".
Remethylation in the oocyte follows over a wider timeframe during post-natal follicle development.
Aqueductal stroke volume was found to increase over a period of 1-2 years, but then to decrease over a similar timeframe (see Figure 14).
Over the past 10 years -- a timeframe encompassing the entirety of the global financial crisis and its aftermath -- Australia's unemployment rate has never exceeded 6percentt.
In Greece, the public sector massively over-borrowed over a similar timeframe.
