US3534537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming and handling large round bales of a fibrous material
Assignee: Iowa State University Research Foundation Inc
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Filing: 1968-06-04
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Granted: 1970-10-20
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Expires: 1988-06-04
Abstract
No abstract record available.
Inventors
- 👤 Wesley F Buchele
- 👤 Virgil D Haverdink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:16
CPC Classifications
A; A01; A01F; A01F15/00; A01F15/07; A01D; A01D87/00; A01D87/12; A01D87/127; A01F15/08; A01F15/0875; A01F15/0883; A01D2087/128; A01F2015/0795
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) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |