US2984211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door closure thruster
Assignee: Individual
•
Filing: 1960-04-01
•
Granted: 1961-05-16
•
Expires: 1980-04-01
Abstract
No abstract record available.
Inventors
- 👤 John A Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:28
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/006; B; B64; B64D; B64D25/00; B64D25/02; B64D25/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2883909A
Cited
US2857890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |