US3521349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of joining first and second members
Assignee: Individual
•
Filing: 1968-05-27
•
Granted: 1970-07-21
•
Expires: 1988-05-27
Abstract
No abstract record available.
Inventors
- 👤 James H Gehring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:03
CPC Classifications
F; F16; F16B; F16B37/00; F16B9/026; F16B37/02; F16B37/14; F16B37/145; F16B9/00; F16B9/02; F16B2200/00; F16B2200/40; F16B2200/403; F16B2200/406; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49833; Y10T29/49947; Y10T29/49948; Y10T29/49952
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US757226A
Cited
US1586439A
Cited
US2219218A
Cited
US2140014A
Cited
US2271167A
Cited
US2452173A
Cited
US2785219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |