US2778094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of chain rollers
Assignee: WHITNEY CHAIN Co
•
Filing: 1954-04-05
•
Granted: 1957-01-22
•
Expires: 1974-04-05
Abstract
No abstract record available.
Inventors
- 👤 Lewis H Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:05
CPC Classifications
C; C21; C21D; C21D7/00; C21D7/02; C21D7/04; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1116776A
Cited
US1466953A
Cited
US1402508A
Cited
US1714660A
Cited
US2047041A
Cited
US2038474A
Cited
US2225572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |