US2488796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scuttle frame and closure unit
Assignee: Individual
•
Filing: 1946-12-30
•
Granted: 1949-11-22
•
Expires: 1966-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ludwig S Baier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:23
CPC Classifications
B; B63; B63B; B63B19/00; B63B19/12; B63B19/14; Y; Y10; Y10S; Y10S411/00; Y10S411/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189416591A
Cited
GB190110614A
Cited
US692231A
Cited
US858781A
Cited
GB190714094A
Cited
GB436471A
Cited
US2279005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-21 | 1953-05-23 | 1953-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-21 | 1957-05-23 | 1957-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-21 | 1961-05-23 | 1961-11-22 | $7700.00 | Window Closed / Lapsed |