US3521736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacking machine
Assignee: LAWRENCE H HUTCHINSON
•
Filing: 1968-11-14
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Granted: 1970-07-28
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Expires: 1988-11-14
Abstract
No abstract record available.
Inventors
- 👤 George E Von Gal Jr
- 👤 Lawrence H Hutchinson
- 👤 Oneal W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:25
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/16; B65G57/20; B65G57/22; B65G57/24; B65G57/245; B65G57/03; B65G57/06
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) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |