US2874411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for coating and impregnating tubular fabrics
Assignee: National Standard Co
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Filing: 1956-08-10
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Granted: 1959-02-24
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Expires: 1976-08-10
Abstract
No abstract record available.
Inventors
- 👤 Leonard G Berquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:30
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/15; B29C48/151; B29C48/152; B29C48/153; B29D30/00; B29D30/06; B29D30/0681; B29D2030/0682; B29D30/08; B29D2030/088; B29K; B29K2021/00; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/0809; B29K2105/0827; B29L; B29L2030/00; B29L2030/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |