Patent US3099050A successfully refreshed from Google Patents.
US3099050A
Expired / Lapsed
US
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Window sash construction
Assignee: De Vac Inc
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Filing: 1960-02-24
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Granted: 1963-07-30
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Expires: 1980-02-24
Abstract
No abstract record available.
Inventors
- 👤 Frank W Hetman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:47
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/42; E06B3/44; E06B2003/4438; E06B2003/4453; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0997
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
IN A SASH HOLDER, THE COMBINATION OF A CARTIDGE AND A SASH RAIL HAVING RECESS MEANS FOR SAID CARTRIDGE, SAID CARTRIDGE BEING SLIDABLY MOUNTED IN SAID RAIL RECESS MEANS AND HAVING AN ELONGATED BODY MEMBER HAVING A RECESS EXTENDING LONGITUDINALLY THEREIN, SAID BODY MEMBER HAVING A FIRST SLOT FORMED ON ONE SIDE THEREOF AND A SECOND SLOT ON THE BOTTOM THEREOF, A LOCKING PIN SLIDABLY MOUNTED IN SAID RECESS OF SAID BODY MEMBER AND SPRING URGED OUTWARDLY THEREOF, AN ACTUATING PIN CONNECTED TO SAID LOCKING PIN AND EXTENDING OUTWARDLY THROUGH SAID BOTTOM SLOT OF SAID CARTIDGE AND A STOP PIN CONNECTED TO SAID LOCKING PIN AND EXTENDING OUTWARDLY THROUGH SAID FIRST SIDE SLOT OF SAID CARTIDGE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |