Patent US2689694A successfully refreshed from Google Patents.
US2689694A
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Thread guide
Assignee: EIDP Inc
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Filing: 1951-11-30
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Granted: 1954-09-21
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 Hunter George Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:46
CPC Classifications
B; B65; B65H; B65H57/00; B65H57/006; B65H57/04; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1912256A
Cited
GB472081A
Cited
US2246086A
Cited
US2299344A
Cited
US2298345A
Cited
US2434227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |