Patent US3274700A successfully refreshed from Google Patents.
US3274700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generating apparatus for use in removing flammable materials from ducts
Assignee: Individual
•
Filing: 1965-07-01
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Granted: 1966-09-27
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Sr Edward J Maguire
- 👤 Eugene F Maguire
- 👤 Jr Edward J Maguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:46
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2029781A
Cited
US2393957A
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US2483993A
Cited
US2645095A
Cited
US3011924A
Cited
US3049450A
Cited
US3055285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |