US3151176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of naphthalene
Assignee: California Research LLC
•
Filing: 1962-08-08
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Granted: 1964-09-29
•
Expires: 1982-08-08
Abstract
No abstract record available.
Inventors
- 👤 Robert L Flanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:13
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/20; C07C15/24; C10; C10C; C10C1/00; C10C1/04; C10C1/08; C10C1/12; C10G; C10G11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |