US2980481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spooler trough
Assignee: Fisher Manufacturing Co Inc
•
Filing: 1957-05-15
•
Granted: 1961-04-18
•
Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 Fisher James Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:19
CPC Classifications
B; B65; B65H; B65H49/00; B65H49/38; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1170580A
Cited
US1760761A
Cited
US1943939A
Cited
US2116311A
Cited
US2307305A
Cited
US2737351A
Cited
US2798640A
Cited
US2798641A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |