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Patent US2610867A successfully refreshed from Google Patents.
US2610867A
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Telephone memo pad assembly
Assignee: Individual
•
Filing: 1949-07-13
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Granted: 1952-09-16
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Expires: 1969-07-13
Abstract
No abstract record available.
Inventors
- 👤 William C Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:03
CPC Classifications
H; H04; H04M; H04M1/00; H04M1/02; H04M1/21; B; B42; B42D; B42D19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |