US3447532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fog generating means and techniques
Assignee: Geoscience Ltd
•
Filing: 1966-07-21
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Granted: 1969-06-03
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Expires: 1986-07-21
Abstract
No abstract record available.
Inventors
- 👤 Heinz F Poppendiek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:15
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/06; B; B01; B01F; B01F23/00; B01F23/20; B01F23/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US311984A
Cited
US1094301A
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US2431110A
Cited
US3087451A
Cited
US3197959A
Cited
US3207130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |