US3390073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon additive for heatexchanger anti-fouling
Assignee: Baker Petrolite LLC
•
Filing: 1967-09-05
•
Granted: 1968-06-25
•
Expires: 1987-09-05
Abstract
No abstract record available.
Inventors
- 👤 Richard L Godar
- 👤 James L Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:36
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/223; C10L1/228; C10L1/2283; C10L1/234; C10L1/236; C10L1/2368
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2229858A
Cited
US2684292A
Cited
US2790014A
Cited
US3142664A
Cited
US2839512A
Cited
US2915567A
Cited
US3001975A
Cited
US3062744A
Cited
US3034876A
Cited
US3190835A
Cited
US3224957A
Cited
US3201350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |