Patent US3159883A successfully refreshed from Google Patents.
US3159883A
Expired / Lapsed
US
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Window structure
Assignee: Individual
•
Filing: 1962-05-18
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Granted: 1964-12-08
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Expires: 1982-05-18
Abstract
No abstract record available.
Inventors
- 👤 Tucker Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:03
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; E06B3/4407
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
A WINDOW CONSTRUCTION COMPRISING A FRAME, A SASH SLIDABLE UP AND DOWN IN THE FRAME AND SAID SASH HAVING TOP AND BOTTOM HORIZONTAL RAILS AND VERTICAL STILES, A PAIR OF SPRING BALANCES IN THE FRAME DISPOSED BETWEEN THE SIDES OF THE SASH AND THE SIDE MEMBERS OF THE FRAME, THE SASH HAVING GUIDE ELEMENTS ENGAGING AND GUIDED BY SAID BALANCES, EACH OF THE BALANCES INCLUDING A SPRING-BIASED EXTENSIBLE STRIP, A BRACKET AT THE LOWER END OF THE STRIP, SAID BRACKET INCLUDING A LIP EXTENDING UNDER THE LOWER END OF THE SASH, AND MEANS CARRIED BY THE SASH AND ADJUSTABLE IN THE BOTTOM RAIL OF THE SASH FOR ENGAGING OVER THE LIP PORTION TO THEREBY COUPLE THE BRACKET TO THE SASH, SAID MEANS BEING SHIFTABLE ON THE SASH TO FREE IT FROM THE BRACKET AND PERMIT MOVEMENT OF THE BRACKET RELATIVELY TO THE SASH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |