Patent US3497585A successfully refreshed from Google Patents.
US3497585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-crimping filament process
Assignee: Monsanto Co
•
Filing: 1966-06-09
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Granted: 1970-02-24
•
Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Rodney M Chapman
- 👤 Wilbur J Privott Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:50
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; D01D5/22
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |