US3475194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treating polyester films
Assignee: GT Schjeldahl Co
•
Filing: 1964-10-30
•
Granted: 1969-10-28
•
Expires: 1984-10-30
Abstract
No abstract record available.
Inventors
- 👤 Carlos M Samour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:51
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/14; C08J2367/00; C08J2367/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2400720A
Cited
US2666693A
Cited
US2849359A
Cited
US3235426A
Cited
US3142582A
Cited
US3186883A
Cited
US3251809A
Cited
US3357874A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |