US3453709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating filamentary material
Assignee: Eastman Kodak Co
•
Filing: 1968-07-22
•
Granted: 1969-07-08
•
Expires: 1988-07-22
Abstract
No abstract record available.
Inventors
- 👤 Richard F Dyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:16
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16; D02G1/167
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2235889A
Cited
US2189938A
Cited
US2278888A
Cited
US2472283A
Cited
US2783609A
Cited
US2852906A
Cited
US2884756A
Cited
US2807864A
Cited
US3017737A
Cited
US3103731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |