Patent US3477740A successfully refreshed from Google Patents.
Patent US2969782A successfully refreshed from Google Patents.
US2969782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti smog means
Assignee: Individual
•
Filing: 1960-03-09
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Granted: 1961-01-31
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Expires: 1980-03-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Falzone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:49
CPC Classifications
F; F02; F02M; F02M29/00; F02M29/02; F02M26/00; F02M26/13; F02M26/14; F02M26/15; F02M26/17; F02M26/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |