Patent US3301923A successfully refreshed from Google Patents.
US3301923A
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US
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2, 2-dihydroxymethylalkyl hydrocarbonthiophosphonates and method of preparation
Assignee: Texaco Inc
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Filing: 1963-03-25
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Granted: 1967-01-31
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Skovronek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:13
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07D; C07D305/00; C07D305/02; C07D305/04; C07D305/06; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4071; C07F9/4075; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/06; C10M2223/065; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A METHYLOL THIOPHOSPHONATE OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A METHYLOL THIOPHOSPHONATE OF THE 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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |