US3125944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:41
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
APPARATUS COMPRISING A REGISTER, SAID REGISTER INCLUDING A GRILLE AND A DAMPER, SAID GRILLE HAVING CORNERS REINFORCED AND MECHANICALLY INTERCONNECTED BY AN L-SHAPED CORNER LOCK, SAID GRILLE HAVING A T-SHAPED SLOT ON A REAR SURFACE THEREOF, A SEAL HAVING A T-SHAPED PORTION DISPOSED WITHIN SAID GROOVE, SPRING CLIP MEANS SECURING SAID DAMPER TO SAID GRILLE, SAID GRILLE INCLUDING VANES, THE ENDS OF SAID VANES BEING ROTATABLY MOUNTED IN BUSHINGS, SAID BUSHINGS BEING MADE FROM A SELF-LUBRICATING MATERIAL, SAID GRILLE BEING PROVIDED WITH A SEAT DEFINED BY A PERIPHERALLY DISPOSED FLANGE, SAID DAMPER HAVING A PORTION WITHIN SAID FLANGE IN ABUTTING CONTACT WITH SAID SEAT, AND SAID SPRING CLIP MEANS EXTENDING ACROSS SAID FLANGE.
Claim 2
Dependent Claim
113 words
APPARATUS COMPRISING A REGISTER, SAID REGISTER INCLUDING A GRILLE AND A DAMPER, SAID GRILLE HAVING CORNERS REINFORCED AND MECHANICALLY INTERCONNECTED BY AN L-SHAPED CORNER LOCK, SAID GRILLE HAVING A T-SHAPED SLOT ON A REAR SURFACE THEREOF, A SEAL HAVING A T-SHAPED PORTION DISPOSED WITHIN SAID GROOVE, SPRING CLIP MEANS SECURING SAID DAMPER TO SAID GRILLE, SAID GRILLE INCLUDING VANES, THE ENDS OF SAID VANES BEING ROTATABLY MOUNTED IN BUSHINGS, SAID BUSHINGS BEING MADE FROM A SELF-LUBRICATING MATERIAL, SAID GRILLE BEING PROVIDED WITH A SEAT DEFINED BY A PERIPHERALLY DISPOSED FLANGE, SAID DAMPER HAVING A PORTION WITHIN SAID FLANGE IN ABUTTING CONTACT WITH SAID SEAT, AND SAID SPRING CLIP MEANS EXTENDING ACROSS SAID FLANGE.
References Cited (Backward Citations)
US2288521A
Cited
US2685246A
Cited
US2761371A
Cited
US2780983A
Cited
US2810460A
Cited
US2945269A
Cited
US3055284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |