US3514251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of heterocyclic polymers as corrosion inhibitors
Assignee: Baker Petrolite LLC
•
Filing: 1969-01-21
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Granted: 1970-05-26
•
Expires: 1989-01-21
Abstract
No abstract record available.
Inventors
- 👤 Robert R Annand
- 👤 Derek Redmore
- 👤 Brian M Rushton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:10
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0605; C08G73/0616; B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/047; C02; C02F; C02F1/00; C02F1/52; C02F1/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2374354A
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US2466517A
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US2468163A
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US2599384A
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US2865817A
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US2945821A
Cited
US2889193A
Cited
US2947703A
Cited
US3210371A
Cited
US3166521A
Cited
US3218270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |