US3530599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating belt loader and excavation apparatus
Assignee: Individual
•
Filing: 1969-02-10
•
Granted: 1970-09-29
•
Expires: 1989-02-10
Abstract
No abstract record available.
Inventors
- 👤 Francis H Holland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:54
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7695; E02F5/00; E02F5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US11382A
Cited
GB208854A
Cited
US2197267A
Cited
US2395244A
Cited
US2618083A
Cited
US2489991A
Cited
US3049817A
Cited
US3025620A
Cited
US3090639A
Cited
US3245159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |