Patent US3383049A successfully refreshed from Google Patents.
US3383049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means of combating atmospheric pollution and a corresponding burner
Assignee: Individual
•
Filing: 1966-10-11
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Granted: 1968-05-14
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Expires: 1986-10-11
Abstract
No abstract record available.
Inventors
- 👤 Robert E Guerin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:32
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/523; F; F23; F23D; F23D11/00; F23D11/10; F23D11/16
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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |