US2725643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yieldable lineal seal
Assignee: Ransohoff Inc
•
Filing: 1953-06-01
•
Granted: 1955-12-06
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Ransohoff Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:34
CPC Classifications
C; C23; C23G; C23G3/00; B; B08; B08B; B08B3/00; B08B3/02; B08B3/022; B24; B24C; B24C3/00; B24C3/08; D; D06; D06B; D06B23/00; D06B23/14; D06B23/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1632760A
Cited
US2073669A
Cited
US2239714A
Cited
US2344475A
Cited
US2564599A
Cited
US2579575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |