Patent US3248893A successfully refreshed from Google Patents.
US3374940A
Expired / Lapsed
US
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Envelopes with integral, detachable coupons contained therein
Assignee: Individual
•
Filing: 1966-06-15
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Granted: 1968-03-26
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Expires: 1986-06-15
Abstract
No abstract record available.
Inventors
- 👤 Robert D Allison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:54
CPC Classifications
B; B42; B42D; B42D15/00; B42D15/02; B42D15/04; B42D15/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US380616A
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US2436105A
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US1032648A
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US1171703A
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US1139003A
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GB419327A
Cited
US2931559A
Cited
US3259299A
Cited
US3314592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |