US2788362A
Expired / Lapsed
US
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Perchlorofluoronitriles and methods for their preparation
Assignee: MW Kellogg Co
•
Filing: 1955-05-18
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Granted: 1957-04-09
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Expires: 1975-05-18
Abstract
No abstract record available.
Inventors
- 👤 William S Barnhart
- 👤 Joseph L Zollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/01; C10M2215/00; C10M2215/16; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A COMPOUND SELECTED FROM THE GROUP OF NITRILES HAVING THE FORMULA,
Claim 2
Dependent Claim
11 words
A COMPOUND SELECTED FROM THE GROUP OF NITRILES HAVING THE FORMULA,
References Cited (Backward Citations)
US2409315A
Cited
US2465318A
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US2549892A
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US2554786A
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US2520181A
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US2567011A
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US2730543A
Cited
US2668182A
Cited
US2691036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |