Patent US3465397A successfully refreshed from Google Patents.
US3465397A
Expired / Lapsed
US
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Apparatus for electrifying and shearing of pile fabrics
Assignee: POLROTOR Inc
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Filing: 1968-08-07
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Granted: 1969-09-09
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Expires: 1988-08-07
Abstract
No abstract record available.
Inventors
- 👤 Heinz Hergert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
D; D06; D06C; D06C13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US721903A
Cited
US815938A
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US3114957A
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FR1129180A
Cited
US2983023A
Cited
US3099871A
Cited
FR1392220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |