US2898008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airborne seeder
Assignee: ECONOMY PEST CONTROL
•
Filing: 1957-11-26
•
Granted: 1959-08-04
•
Expires: 1977-11-26
Abstract
No abstract record available.
Inventors
- 👤 Stanley L Hillwick
- 👤 Wayne M Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:29
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US183321A
Cited
US603309A
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US2045709A
Cited
US2603388A
Cited
US920656A
Cited
US1814483A
Cited
FR900000A
Cited
US2619355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |