US2491447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting construction
Assignee: United Carr Fastener Corp
•
Filing: 1946-03-22
•
Granted: 1949-12-13
•
Expires: 1966-03-22
Abstract
No abstract record available.
Inventors
- 👤 Charles L Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:37
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; H02B1/044; H02B1/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1398373A
Cited
US1979695A
Cited
US2125843A
Cited
US2111713A
Cited
US2235207A
Cited
US2201611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |