Patent US2649464A successfully refreshed from Google Patents.
US2649464A
Expired / Lapsed
US
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Phosphorus-containing organic compounds
Assignee: Pest Control Ltd
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Filing: 1951-08-21
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Granted: 1953-08-18
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Expires: 1971-08-21
Abstract
No abstract record available.
Inventors
- 👤 Hartley Gilbert Spencer
- 👤 Pound Denis William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:03
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/22; C07F9/228
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
NEW PHOSPHORUS-CONTAINING ORGANIC COMPOUNDS CONTAINING LESS THAN ELEVEN CARBON ATOMS IN THE MOLECULE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
17 words
NEW PHOSPHORUS-CONTAINING ORGANIC COMPOUNDS CONTAINING LESS THAN ELEVEN CARBON ATOMS IN THE MOLECULE OF THE GENERAL FORMULA:
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |