US2768799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Replaceable thread guide
Assignee: Akzo Nobel UK PLC
•
Filing: 1951-11-08
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Granted: 1956-10-30
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Expires: 1971-11-08
Abstract
No abstract record available.
Inventors
- 👤 George S Porter
- 👤 Edward N Corby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:50
CPC Classifications
B; B65; B65H; B65H57/00; B65H57/26; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US387984A
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US395853A
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GB201326A
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US1964377A
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US1912256A
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US1964356A
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US2206212A
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US2307664A
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US2462298A
Cited
US2634066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |