Patent US1137759A successfully refreshed from Google Patents.
Patent US4214644A successfully refreshed from Google Patents.
Patent US4220882A successfully refreshed from Google Patents.
Patent US4369563B1 successfully refreshed from Google Patents.
Patent US3471294A successfully refreshed from Google Patents.
US3471294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive polyvinyl butyral lacquer containing water-insoluble chromates or bichromates
Assignee: US Philips Corp
•
Filing: 1965-10-19
•
Granted: 1969-10-07
•
Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Hendrikus Cornelis Nico Sanden
- 👤 Hendrikes Johannes Veenendaal
- 👤 Theo Tjalke Boersma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:07
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/04; C; C09; C09D; C09D129/00; C09D129/14; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |