Patent US3121383A successfully refreshed from Google Patents.
US3121383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking means for heating and air conditioning registers and the like
Assignee: United States Register Co
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Filing: 1961-12-28
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Granted: 1964-02-18
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Expires: 1981-12-28
Abstract
No abstract record available.
Inventors
- 👤 Wilbert J Parrish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:19
CPC Classifications
F; F24; F24F; F24F13/00; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN A REGISTER ASSEMBLY OF THE TYPE INCLUDING A FRAME AND A REMOVABLE GRILL, COOPERABLY ENGAGEABLE MEANS CARRIED RESPECTIVELY BY SAID FRAME AND GRILL TO SPACE THEM FROM EACH OTHER, A LOCK FORRELEASABLY RETAINING SAID GRILL IN SAID FRAME, SAID LOCK INCLUDING A FORWARDLY PROJECTING KEEPER ON SAID FRAME AND REARWARDLY PROJECTING LATCH CARRIED BY SAID GRILL FOR ENGAGEMENT BEHIND SAID KEEPER, SAID KEEPER AND LATCH BEING DISPOSED IN THE SPACE BETWEEN SAID FRAME AND GRILL, AND MEANS MOUNTING SAID LATCH ON SAID GRILL FOR ROTATION.
Claim 2
Dependent Claim
86 words
IN A REGISTER ASSEMBLY OF THE TYPE INCLUDING A FRAME AND A REMOVABLE GRILL, COOPERABLY ENGAGEABLE MEANS CARRIED RESPECTIVELY BY SAID FRAME AND GRILL TO SPACE THEM FROM EACH OTHER, A LOCK FORRELEASABLY RETAINING SAID GRILL IN SAID FRAME, SAID LOCK INCLUDING A FORWARDLY PROJECTING KEEPER ON SAID FRAME AND REARWARDLY PROJECTING LATCH CARRIED BY SAID GRILL FOR ENGAGEMENT BEHIND SAID KEEPER, SAID KEEPER AND LATCH BEING DISPOSED IN THE SPACE BETWEEN SAID FRAME AND GRILL, AND MEANS MOUNTING SAID LATCH ON SAID GRILL FOR ROTATION.
References Cited (Backward Citations)
US1643863A
Cited
US2634146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |