US3512672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacker crane with pivotal fork and extension means thereon
Assignee: Alstom Power Inc
•
Filing: 1968-07-30
•
Granted: 1970-05-19
•
Expires: 1988-07-30
Abstract
No abstract record available.
Inventors
- 👤 Peter William Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:53
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/07; B66F9/075; B66F9/12; B66F9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1044712B
Cited
US2973878A
Cited
US3092268A
Cited
US3232465A
Cited
US3175722A
Cited
DE1229454B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |