Patent US3372848A successfully refreshed from Google Patents.
US3372848A
Expired / Lapsed
US
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Feed roll assembly separable in response to thread depletion
Assignee: Leesona Corp
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Filing: 1965-10-24
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Granted: 1968-03-12
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Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Warren E Macdonald
- 👤 Richard G Hilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:41
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/0266; B; B65; B65H; B65H51/00; B65H51/02; B65H51/04; B65H51/08; B65H51/10; D01; D01H; D01H13/00; D01H13/14; D01H13/16; D01H13/18; D01H13/182; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |