Patent CA700976A successfully refreshed from Google Patents.
Patent US2907348A successfully refreshed from Google Patents.
US2907348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
gerteis
Assignee: —
•
Filing: 1957-08-01
•
Granted: 1959-10-06
•
Expires: 1977-08-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:53
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/02; F04B49/03; F25; F25B; F25B49/00; F25B49/02; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86485; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/8663
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |