US2623686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way mailing device
Assignee: Individual
•
Filing: 1951-04-16
•
Granted: 1952-12-30
•
Expires: 1971-04-16
Abstract
No abstract record available.
Inventors
- 👤 Covan Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:54
CPC Classifications
G; G09; G09F; G09F23/00; G09F23/10; A; A24; A24F; A24F27/00; A24F27/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US673399A
Cited
US877330A
Cited
CH63240A
Cited
US1453015A
Cited
US1722465A
Cited
US2157740A
Cited
US2349488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |