Patent US2679988A successfully refreshed from Google Patents.
US2679988A
Expired / Lapsed
US
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Bobbin
Assignee: Spaulding Fibre Co Inc
•
Filing: 1952-07-18
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Granted: 1954-06-01
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Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Rodney A Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:52
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/14; B65H2701/00; B65H2701/30; B65H2701/31; B65H2701/50; B65H2701/51; B65H2701/515
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US480681A
Cited
US1001128A
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US1074786A
Cited
US1856253A
Cited
US2214399A
Cited
US2487726A
Cited
GB614093A
Cited
US2453247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |