Patent US2329919A successfully refreshed from Google Patents.
Patent US1809755A successfully refreshed from Google Patents.
US1809755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material for forming coatings, for use as impregnating agents or for like purposes
Assignee: Individual
•
Filing: 1928-02-07
•
Granted: 1931-06-09
•
Expires: 1948-02-07
Abstract
No abstract record available.
Inventors
- 👤 King George
- 👤 Threlfall Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:16
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/145; C09; C09D; C09D1/00; Y; Y10; Y10S; Y10S8/00; Y10S8/01
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) | 1934-06-08 | 1934-12-08 | 1935-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-08 | 1938-12-08 | 1939-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-08 | 1942-12-08 | 1943-06-09 | $7700.00 | Window Closed / Lapsed |