US2470487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable anvil
Assignee: Alton Box Board Co
•
Filing: 1944-04-13
•
Granted: 1949-05-17
•
Expires: 1964-04-13
Abstract
No abstract record available.
Inventors
- 👤 Robert F Hollis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:04
CPC Classifications
B; B25; B25H; B25H1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US341978A
Cited
US350961A
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US507605A
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US645993A
Cited
US676197A
Cited
US1383280A
Cited
US1664738A
Cited
US1664739A
Cited
US2392070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |