Patent CA480223A successfully refreshed from Google Patents.
Patent US1999088A successfully refreshed from Google Patents.
US1999088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing a carrier with a light sensitive substance and article produced thereby
Assignee: Koninklijke Philips NV
•
Filing: 1932-09-23
•
Granted: 1935-04-23
•
Expires: 1952-09-23
Abstract
No abstract record available.
Inventors
- 👤 Boer Jan Hendrik De
- 👤 Dippel Cornelis Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:07
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/494; G03C1/496; G03C1/4965; Y; Y10; Y10S; Y10S430/00; Y10S430/133; Y10S430/136
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-04-22 | 1938-10-22 | 1939-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-22 | 1942-10-22 | 1943-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-22 | 1946-10-22 | 1947-04-23 | $7700.00 | Window Closed / Lapsed |