US3402816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable gravel handling apparatus
Assignee: Machinery Inc
•
Filing: 1966-08-08
•
Granted: 1968-09-24
•
Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:37
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US311485A
Cited
US966294A
Cited
US1460571A
Cited
US2107532A
Cited
US2396954A
Cited
US2690840A
Cited
US3003265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |