US3377415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic polypropylene yarn and process
Assignee: Hercules LLC
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Filing: 1964-05-27
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Granted: 1968-04-09
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 George C Oppenlander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/27; C08K5/28; C08K5/36; C08K5/43; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F6/00; D01F6/02; D01F6/04; D01F6/06
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |