US2821159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Notch tinner
Assignee: ACF Industries Inc
•
Filing: 1956-01-23
•
Granted: 1958-01-28
•
Expires: 1976-01-23
Abstract
No abstract record available.
Inventors
- 👤 Charles C Rayburn
- 👤 Jr James G Black
- 👤 Herman A Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:08
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0646; B23K3/0669; B23K3/0676
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735398A
Cited
US1652697A
Cited
US2650600A
Cited
US2508200A
Cited
US2583968A
Cited
US2723922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-27 | 1961-07-29 | 1962-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-27 | 1965-07-29 | 1966-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-27 | 1969-07-29 | 1970-01-28 | $7700.00 | Window Closed / Lapsed |