US3468112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combine
Assignee: GEORGE P LANDGREBE
•
Filing: 1966-06-09
•
Granted: 1969-09-23
•
Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 George P Landgrebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:46
CPC Classifications
A; A01; A01D; A01D89/00; A01D41/00; A01D41/12; A01D41/14; A01D87/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT41426B
Cited
US2607180A
Cited
US2634573A
Cited
US2955403A
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US3020696A
Cited
US3221483A
Cited
US3331195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |