Patent US3142903A successfully refreshed from Google Patents.
US3142903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opener
Assignee: Individual
•
Filing: 1961-10-02
•
Granted: 1964-08-04
•
Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Bruno V Stiller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:51
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US697587A
Cited
US946740A
Cited
US2106639A
Cited
US2599551A
Cited
US2737069A
Cited
US2851704A
Cited
US2788572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |