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
2026-11-05 09:28
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 |