US3479212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating polyester shaped articles with polymeric compound containing polyester group and active group in the presence of swelling agent for polyester
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1965-06-28
•
Granted: 1969-11-18
•
Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 Michael Mundie Robertson
- 👤 Geoffrey Alan Horsfall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:22
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/672; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; C08J3/09; C08J7/00; C08J7/04; C08J7/0427; D; D06; D06L; D06L4/00; D06L4/60; D06L4/671; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; D06M15/5075; D06P; D06P1/00; D06P1/0004; D06P1/0016; D06P1/44; D06P1/52; D06P1/5264; D06P1/5271; D06P3/00; D06P3/34; D06P3/52; C08J2367/00; C08J2367/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2748027A
Cited
US3034920A
Cited
US3136655A
Cited
US3284232A
Cited
US3137668A
Cited
US3152920A
Cited
US3309222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |