Patent US692260A successfully refreshed from Google Patents.
Patent US1891918A successfully refreshed from Google Patents.
US1891918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding composition and process
Assignee: Richardson Co
•
Filing: 1929-04-12
•
Granted: 1932-12-27
•
Expires: 1949-04-12
Abstract
No abstract record available.
Inventors
- 👤 Edward R Dillehay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:18
CPC Classifications
C; C08; C08L; C08L95/00; Y; Y10; Y10S; Y10S264/00; Y10S264/64; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815; Y10T428/31844
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) | 1935-12-27 | 1936-06-27 | 1936-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-27 | 1940-06-27 | 1940-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-27 | 1944-06-27 | 1944-12-27 | $7700.00 | Window Closed / Lapsed |