Patent US2267733A successfully refreshed from Google Patents.
Patent US2961733A successfully refreshed from Google Patents.
US2961733A
Expired / Lapsed
US
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Processing cylinders for pile materials
Assignee: Individual
•
Filing: 1956-01-20
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Granted: 1960-11-29
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Expires: 1976-01-20
Abstract
No abstract record available.
Inventors
- 👤 Hart Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:13
CPC Classifications
D; D06; D06C; D06C29/00; D06C2700/00; D06C2700/29
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |