Patent US2720468A successfully refreshed from Google Patents.
US3470928A
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Polypropylene fabric with modified selvage
Assignee: Avisun Corp
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Filing: 1967-10-26
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Granted: 1969-10-07
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Expires: 1987-10-26
Abstract
No abstract record available.
Inventors
- 👤 Harold A Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:49
CPC Classifications
D; D03; D03D; D03D23/00; D03D15/00; D03D15/20; D03D15/208; D03D15/217; D03D15/283; D03D15/40; D03D15/44; D03D15/46; D03D15/50; D03D15/573; D10; D10B; D10B2201/00; D10B2201/01; D10B2201/02; D10B2321/00; D10B2321/02; D10B2321/021; D10B2321/022; D10B2331/00; D10B2331/02; D10B2401/00; D10B2401/06; D10B2401/063; D10B2505/00; D10B2505/10; D10B2505/18; Y; Y10; Y10S; Y10S383/00; Y10S383/908; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
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) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |