US2852250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet collating machine
Assignee: Davidson Corp
•
Filing: 1953-10-09
•
Granted: 1958-09-16
•
Expires: 1973-10-09
Abstract
No abstract record available.
Inventors
- 👤 Harvey F George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
B; B65; B65H; B65H7/00; B65H7/02; B65H7/06; B65H7/12; B65H39/00; B65H39/02; B65H39/04; B65H39/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1253842A
Cited
US1443430A
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US2255777A
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US2427839A
Cited
US2479060A
Cited
US2578176A
Cited
US2634972A
Cited
US2744562A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |