US3412874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automated tile handling system
Assignee: SHIFFER IND EQUIPMENT Inc
•
Filing: 1967-02-16
•
Granted: 1968-11-26
•
Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 Stuart O Shiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:50
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/05; B65G49/08; B65G49/085; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/106; Y10S414/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1490235A
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US2598222A
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US2655114A
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US2988237A
Cited
US2936908A
Cited
FR1182911A
Cited
US3090502A
Cited
GB971421A
Cited
US3244291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |