US2829421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Armored strand of short parallel fibres
Assignee: Individual
•
Filing: 1949-07-21
•
Granted: 1958-04-08
•
Expires: 1969-07-21
Abstract
No abstract record available.
Inventors
- 👤 Richard W Hanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:06
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/02; D02G3/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/2424; Y10T428/24248; Y10T428/24256; Y10T428/249921
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR473665A
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US388056A
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US592451A
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USRE23231E
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US773484A
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US1569685A
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US1764524A
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US1758418A
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US1875710A
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US1995696A
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US2251402A
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US2410020A
Cited
US2581561A
Cited
US2544798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |