US3392638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Envelope folding machine
Assignee: Rochester Envelope Co Inc
•
Filing: 1966-06-20
•
Granted: 1968-07-16
•
Expires: 1986-06-20
Abstract
No abstract record available.
Inventors
- 👤 William L Reineman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:03
CPC Classifications
B; B31; B31B; B31B70/00; B31B2150/00; B31B2160/00; B31B2160/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US773484A
Cited
US1538299A
Cited
US2177722A
Cited
US2291280A
Cited
US2677317A
Cited
US2691922A
Cited
US2776094A
Cited
US3206911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |