US3065687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire door
Assignee: DOHRMANN SALES CO
•
Filing: 1960-11-28
•
Granted: 1962-11-27
•
Expires: 1980-11-28
Abstract
No abstract record available.
Inventors
- 👤 Graswich Edward
- 👤 Jack W Cedarquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:46
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; F24C15/2021; F23; F23M; F23M7/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2813477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-26 | 1966-05-28 | 1966-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-26 | 1970-05-28 | 1970-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-26 | 1974-05-28 | 1974-11-27 | $7700.00 | Window Closed / Lapsed |