US3413953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking knob structure
Assignee: Thomas International Corp
•
Filing: 1965-01-18
•
Granted: 1968-12-03
•
Expires: 1985-01-18
Abstract
No abstract record available.
Inventors
- 👤 Bernhard R Kuhl
- 👤 Donald H Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:06
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/2084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1226161A
Cited
US1480238A
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US1527949A
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US1563635A
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US1563351A
Cited
US1599034A
Cited
US2706774A
Cited
US3010743A
Cited
US3236204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |