US2560486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring fastening device
Assignee: UNITED CARR EASTENER CORP
•
Filing: 1945-07-20
•
Granted: 1951-07-10
•
Expires: 1965-07-20
Abstract
No abstract record available.
Inventors
- 👤 Stuart T Shears
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:28
CPC Classifications
F; F16; F16L; F16L3/00; F16L3/22; F16L3/223; F16L3/227; F16L3/237; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3439; Y10T24/344; Y10T24/3443
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307240A
Cited
US1543253A
Cited
US1772687A
Cited
US1981973A
Cited
US2109213A
Cited
US2278691A
Cited
US2266266A
Cited
US2334705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |