Patent US2733960A successfully refreshed from Google Patents.
US2733960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barfod
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
•
Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:57
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/16; F02M61/18; F02M61/188; F02M61/162; F23; F23D; F23D11/00; F23D11/36; F23D11/38; F23D11/383
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1011036A
Cited
US1505331A
Cited
GB208219A
Cited
FR804852A
Cited
US2247520A
Cited
US2590772A
Cited
US2571501A
Cited
US2568240A
Cited
US2636778A
Cited
US2665167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |