US3512913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing polyethylene terephthalate film
Assignee: Bexford Ltd
•
Filing: 1966-07-18
•
Granted: 1970-05-19
•
Expires: 1986-07-18
Abstract
No abstract record available.
Inventors
- 👤 Michael Curtis Day
- 👤 Patrick Terence Mcgrail
- 👤 Basil R Shephard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:40
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; D06B; D06B3/00; D06B3/10; D06B2700/00; D06B2700/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2188160A
Cited
US3034847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |