Patent US3346613A successfully refreshed from Google Patents.
US3346613A
Expired / Lapsed
US
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2, 4-dihalophenyl esters of lower alkane-and haloalkane-sulfonic acids
Assignee: Shell USA Inc
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Filing: 1965-07-29
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Granted: 1967-10-10
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Expires: 1985-07-29
Abstract
No abstract record available.
Inventors
- 👤 John E Larson
- 👤 Jr Jerome G Kuderna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:22
CPC Classifications
C; C07; C07C; C07C309/00; C07C309/63; C07C309/64; C07C309/68; C07C309/65; C07C309/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2474350A
Cited
US2782217A
Cited
US2728788A
Cited
US2918401A
Cited
US2894971A
Cited
US3021258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |