US3402987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing of polymeric articles treated with a graft copolymer of an n-vinyl lactam polymer
Assignee: GAF Corp
•
Filing: 1964-01-20
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Granted: 1968-09-24
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Philip B Dalton
- 👤 Marvin R Leibowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:00
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/5214; D06P1/5242; C; C08; C08F; C08F271/00; C08F271/02; D06P3/00; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/921; Y10S8/922; Y10S8/924; Y10S8/927; Y10S8/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3029220A
Cited
US3206272A
Cited
US3244657A
Cited
US3244658A
Cited
US3256364A
Cited
US3190925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |