US2673680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way mailing device
Assignee: Individual
•
Filing: 1950-04-04
•
Granted: 1954-03-30
•
Expires: 1970-04-04
Abstract
No abstract record available.
Inventors
- 👤 Deutschmeister Herman
- 👤 Deutschmeister Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
B; B42; B42D; B42D15/00; B42D15/02; B42D15/04; B42D15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US174940A
Cited
US886449A
Cited
US1287562A
Cited
US1343419A
Cited
US1957704A
Cited
US1969428A
Cited
US2300071A
Cited
US2355348A
Cited
US2402821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |