US2548681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening
Assignee: Individual
•
Filing: 1946-02-13
•
Granted: 1951-04-10
•
Expires: 1966-02-13
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/28; E05; E05C; E05C3/00; E05C3/02; E05C3/04; E05C3/041; E05C3/046; E05D; E05D15/00; E05F; E05F7/00; E05F7/04; E05C17/00; E05C17/02; E05C17/04; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1039; Y10T292/1043; Y10T292/1044; Y10T292/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US451702A
Cited
US1420899A
Cited
GB189421380A
Cited
US855259A
Cited
US837811A
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US1476501A
Cited
US1941031A
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US2136408A
Cited
US2236804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |