Patent CA971580A successfully refreshed from Google Patents.
Patent US3039609A successfully refreshed from Google Patents.
US3039609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive motion horizontal screen shaft assembly
Assignee: Hewitt Robins Inc
•
Filing: 1959-07-06
•
Granted: 1962-06-19
•
Expires: 1979-07-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Lippmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:23
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/42; B07B1/44
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2008296A
Cited
US2042072A
Cited
US1943076A
Cited
US1943220A
Cited
US2188482A
Cited
US2233669A
Cited
US2316725A
Cited
US2514538A
Cited
US2610524A
Cited
US2924125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |