US1945960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of hydrocarbons
Assignee: Individual
•
Filing: 1931-02-18
•
Granted: 1934-02-06
•
Expires: 1951-02-18
Abstract
No abstract record available.
Inventors
- 👤 Winkler Fritz
- 👤 Haeuber Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:33
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/02; B01J2219/00; B01J2219/02; B01J2219/025; B01J2219/0277; B01J2219/0286; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/943
Claims Analysis
Total Claims: 0
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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) | 1937-02-05 | 1937-08-07 | 1938-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-02-05 | 1941-08-07 | 1942-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-02-05 | 1945-08-07 | 1946-02-06 | $7700.00 | Window Closed / Lapsed |