US3509770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sampling process and apparatus for paving material plants
Assignee: American Hoist and Derrick Co
•
Filing: 1967-09-21
•
Granted: 1970-05-05
•
Expires: 1987-09-21
Abstract
No abstract record available.
Inventors
- 👤 James L Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:59
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1354016A
Cited
US1860107A
Cited
US2245519A
Cited
US2303085A
Cited
US2737315A
Cited
US2893602A
Cited
US3186233A
Cited
US3253470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |