US3044955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulating oils
Assignee: Shell USA Inc
•
Filing: 1959-05-27
•
Granted: 1962-07-17
•
Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Groot Wilhelmus C De
- 👤 Haan Hubertus N H De
- 👤 Bosch Ralph W Van Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:40
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/20; H01B3/22; C; C10; C10M; C10M101/00; C10M101/02; C10G; C10G2400/00; C10G2400/10; C10G2400/12; C10M2203/00; C10M2203/10; C10M2203/1006; C10M2203/102; C10M2203/1025; C10M2203/104; C10M2203/1045; C10M2203/106; C10M2203/1065; C10M2203/108; C10M2203/1085; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/026; C10N; C10N2040/00; C10N2040/14; C10N2040/16; C10N2040/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2865849A
Cited
US2944012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |