US3481821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof fabric and method for forming the same
Assignee: Flexa Industria Materie Plastiche SpA
•
Filing: 1965-10-19
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Granted: 1969-12-02
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Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Augusto J Brunner
- 👤 Fulvio Costa
- 👤 Luigi Falcone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:19
CPC Classifications
B; B32; B32B; B32B27/00; A; A41; A41D; A41D31/00; A41D31/04; A41D31/10; A41D31/102; D; D06; D06N; D06N3/00; D06N3/0002; D06N3/004; D06N3/0086; D06N3/0095; F; F01; F01B; F01B13/00; F01B13/02; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/23979; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB366864A
Cited
US2268399A
Cited
US2533976A
Cited
US2593553A
Cited
US3042564A
Cited
GB960445A
Cited
FR1327225A
Cited
US3272685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |