Patent US3510500A successfully refreshed from Google Patents.
US3510500A
Expired / Lapsed
US
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Process for preparing an ester from a monobasic organic acid and an organic halide
Assignee: Gulf Research and Development Co
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Filing: 1963-12-26
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Granted: 1970-05-05
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 William L Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:27
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H10D84/617; C; C07; C07C; C07C67/00; C07C67/10; C07C67/11; H04; H04R; H04R23/00; H04R23/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH169040A
Cited
US3148207A
Cited
US3148200A
Cited
US3221045A
Cited
US3278569A
Cited
US3420803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |