US3029921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Royal Mcbee Corp
•
Filing: 1961-03-09
•
Granted: 1962-04-17
•
Expires: 1981-03-09
Abstract
No abstract record available.
Inventors
- 👤 John M Reynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:48
CPC Classifications
B; B41; B41J; B41J7/00; B41J7/54; B41J7/56; B41J7/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077962A
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US2661683A
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US2643753A
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US2687087A
Cited
US2680970A
Cited
US2861668A
Cited
US2867168A
Cited
US2847105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |