US2702190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope stacking mechanism
Assignee: PARTEN MACHINERY CO
•
Filing: 1950-12-29
•
Granted: 1955-02-15
•
Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 Ormonde P Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:27
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/38; B65H29/44; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2301/42142
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1063339A
Cited
US1238207A
Cited
US1603294A
Cited
US1991411A
Cited
US2232721A
Cited
US2307907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |