Patent US2142115A successfully refreshed from Google Patents.
US2142115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition
Assignee: EIDP Inc
•
Filing: 1937-03-23
•
Granted: 1939-01-03
•
Expires: 1957-03-23
Abstract
No abstract record available.
Inventors
- 👤 Cupery Martin Eli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:45
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/248; C; C09; C09K; C09K21/00; C09K21/06; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T428/31989; Y10T428/31993; Y10T428/31996; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2721; Y10T442/2762; Y10T442/277
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) | 1942-01-02 | 1942-07-04 | 1943-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-02 | 1946-07-04 | 1947-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-02 | 1950-07-04 | 1951-01-03 | $7700.00 | Window Closed / Lapsed |