US2835635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibiting compositions
Assignee: GAF Chemicals Corp
•
Filing: 1956-11-01
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Granted: 1958-05-20
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Expires: 1976-11-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Mayhew
- 👤 Charles F Jelinek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:23
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23F11/128; C10L1/191; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A CORROSION INHIBITING COMPOSITION COMPRISING A MAJOR PROPORTION OF A LIQUID HYDROCARBON HAVING A BOILING POINT OF 50* TO 500*C. AND A CORROSION INHIBITING AMOUT OF AT LEAST ONE ESTER OF TRIS-HYDROXYMETHYLBENZENE HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
37 words
A CORROSION INHIBITING COMPOSITION COMPRISING A MAJOR PROPORTION OF A LIQUID HYDROCARBON HAVING A BOILING POINT OF 50* TO 500*C. AND A CORROSION INHIBITING AMOUT OF AT LEAST ONE ESTER OF TRIS-HYDROXYMETHYLBENZENE HAVING THE FOLLOWING GENERAL FORMULA:
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |