US3400841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Workpiece stacking devices
Assignee: Singer Co
•
Filing: 1965-07-09
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Granted: 1968-09-10
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Expires: 1985-07-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph W A Off
- 👤 Jr John A Raudonis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:31
CPC Classifications
D; D05; D05B; D05B41/00; B; B65; B65G; B65G57/00; B65G57/28; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/12
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |