Patent US3027875A successfully refreshed from Google Patents.
US3027875A
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Assignee: Individual
•
Filing: 1957-12-13
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Granted: 1962-04-03
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Expires: 1977-12-13
Abstract
No abstract record available.
Inventors
- 👤 Herman J Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:14
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/06; B; B25; B25C; B25C1/00; B25C1/04; B25C1/041; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/35; F15B2211/353; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/42; F15B2211/428; F15B2211/455; F15B2211/60; F15B2211/625; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; Y; Y10; Y10S; Y10S91/00; Y10S91/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US502497A
Cited
US2406747A
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US2677933A
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US2687522A
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GB769544A
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US2854953A
Cited
US2944522A
Cited
US2872901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |