US2728178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope stuffing and sealing machine
Assignee: Individual
•
Filing: 1952-03-26
•
Granted: 1955-12-27
•
Expires: 1972-03-26
Abstract
No abstract record available.
Inventors
- 👤 Kern Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:53
CPC Classifications
B; B43; B43M; B43M5/00; B43M5/04; B43M5/042; Y; Y10; Y10S; Y10S271/00; Y10S271/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US946071A
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US1151792A
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US1543842A
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US1886119A
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US2022475A
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US2114814A
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US2482060A
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US2583746A
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US2628465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-26 | 1959-06-27 | 1959-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-26 | 1963-06-27 | 1963-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-26 | 1967-06-27 | 1967-12-27 | $7700.00 | Window Closed / Lapsed |