US3380353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing lined envelopes
Assignee: AMERICAN ENVCLOPE Co
•
Filing: 1966-05-11
•
Granted: 1968-04-30
•
Expires: 1986-05-11
Abstract
No abstract record available.
Inventors
- 👤 Emerick J Mittermayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/74; B31B70/81; B31B2150/00; B31B2160/00; B31B2160/10; B31B2170/00; B31B2170/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2242799A
Cited
US3093371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |