US2755906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed and discharge mechanism for envelope conveyor
Assignee: United States Envelope Co
•
Filing: 1952-12-05
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Granted: 1956-07-24
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Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Vincent E Heywood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:45
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/76; B31B2150/00; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2604829A
Cited
US2648420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |