US2836221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing waterproof coverings
Assignee: FR DE MATERIAUX ET PRODUITS HY
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Filing: 1956-09-04
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Granted: 1958-05-27
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Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 Bove Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:55
CPC Classifications
E; E04; E04D; E04D5/00; E04D5/10; B; B32; B32B; B32B27/00; D; D06; D06N; D06N3/00; D06N3/0002; D06N3/0013; D06N3/0086; D06N3/0088; D06N3/0095; D06N5/00; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H5/00; D21H5/0005; D21H5/0025; D21J; D21J1/00; D21J1/08; D21J1/16; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1722; Y10T156/1727; Y10T156/1729; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T428/31819
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) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |