US2477000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic fiber paper
Assignee: C H Dexter & Sons Inc
•
Filing: 1946-08-22
•
Granted: 1949-07-26
•
Expires: 1966-08-22
Abstract
No abstract record available.
Inventors
- 👤 Fay H Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:34
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H27/00; D21H27/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1790839A
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GB191204332A
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US1980881A
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US2006392A
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US2069763A
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US2045095A
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DE679334C
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US2215136A
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US2336367A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |