Patent US3022318A successfully refreshed from Google Patents.
US3022318A
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US
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Derivatives of 3-phenyl-spiro
Assignee: NCR Voyix Corp
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Filing: 1959-07-15
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Granted: 1962-02-20
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Expires: 1979-07-15
Abstract
No abstract record available.
Inventors
- 👤 Berman Elliot
- 👤 David B Mcquain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:57
CPC Classifications
C; C07; C07D; C07D405/00; C07D405/02; C07D405/12; A; A01; A01N; A01N43/00; A01N43/02; A01N43/04; A01N43/14; A01N43/16; C07D309/00; C07D309/34; C07D309/36; C07D309/38; C07D311/00; C07D311/02; C07D311/04; C07D311/42; C07D311/44; C07D493/00; C07D493/02; C07D493/10; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6561; G; G03; G03C; G03C1/00; G03C1/685; Y; Y10; Y10S; Y10S252/00; Y10S252/962
Claims Analysis
Total Claims: 0
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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) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |