Patent US2078754A successfully refreshed from Google Patents.
US2078754A
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Assignee: CF Burgess Laboratories Inc
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Filing: 1934-03-24
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Granted: 1937-04-27
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Expires: 1954-03-24
Abstract
No abstract record available.
Inventors
- 👤 John A Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:32
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1838; F01N1/00; F01N1/02; F01N1/04; F01N1/08; F01N1/10; F01N1/24; F01N13/007; F01N13/08; F01N13/10; F01N13/1844; F01N13/1855; F02; F02M; F02M35/00; F02M35/12; F02M35/1205; F02M35/1216; F02M35/1272; F01N2310/00; F01N2310/02; F01N2310/04; F01N2310/08; F01N2450/00; F01N2450/24; F01N2470/00; F01N2470/02; F01N2470/10; F01N2470/16; F01N2470/18; F01N2530/00; F01N2530/26
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) | 1940-04-26 | 1940-10-26 | 1941-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-04-26 | 1944-10-26 | 1945-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-04-26 | 1948-10-26 | 1949-04-27 | $7700.00 | Window Closed / Lapsed |