US3539340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparencies for electrostatic copying consisting of polyester sheets coated with vinylidene chloride copolymers
Assignee: Celanese Corp
•
Filing: 1967-07-17
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Granted: 1970-11-10
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Expires: 1987-07-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Dolce
- 👤 Donald L Mccabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:48
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0006; G03G7/002; G03G7/0026; G03G7/004; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J2367/00; C08J2367/02; C08J2427/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3275436A
Cited
US3269994A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |