US2617248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overwind preventer
Assignee: Individual
•
Filing: 1948-12-31
•
Granted: 1952-11-11
•
Expires: 1968-12-31
Abstract
No abstract record available.
Inventors
- 👤 Foster H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:53
CPC Classifications
G; G04; G04B; G04B1/00; G04B1/10; G04B1/18; G04B1/185; G04D; G04D3/00; G04D3/0002; G04D3/0005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US397504A
Cited
US448191A
Cited
US497429A
Cited
US1091561A
Cited
US1522073A
Cited
US1619943A
Cited
CH145733A
Cited
US1962056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |