US3449016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blower for pulverulent material
Assignee: BUFFALO TURBINE AGRICULTURAL EQUIPMENT CO Inc
•
Filing: 1966-06-23
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Granted: 1969-06-10
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Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 Coyle E Knowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:45
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/66; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/1413; B05B7/1422; B05B7/1427; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3112; Y10T137/4891; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87619; Y10T137/87627
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US714802A
Cited
US727030A
Cited
US793526A
Cited
US847270A
Cited
US1558362A
Cited
US2330164A
Cited
GB720529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |