US3499554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacker crane and warehouse system and method for stacking and storing rolls of material
Assignee: Commercial Affiliates Inc
•
Filing: 1968-02-21
•
Granted: 1970-03-10
•
Expires: 1988-02-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Davis
- 👤 Martin L Leibowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:55
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/0407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE232336C
Cited
CA573683A
Cited
FR690736A
Cited
US2271624A
Cited
DE808338C
Cited
US2765928A
Cited
DE1229454B
Cited
US3268097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |