US2673760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door holding device
Assignee: Individual
•
Filing: 1949-05-09
•
Granted: 1954-03-30
•
Expires: 1969-05-09
Abstract
No abstract record available.
Inventors
- 👤 Otis J Hawks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:33
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/36; Y; Y10; Y10S; Y10S16/00; Y10S16/17; Y10T; Y10T292/00; Y10T292/28; Y10T292/65
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1916882A
Cited
US2217079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |