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US3261623A
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Envelope
Assignee: PAK WELL PAPER IND Inc
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Filing: 1964-11-23
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Granted: 1966-07-19
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 David J Kiedrowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:36
CPC Classifications
B; B65; B65D; B65D27/00; B65D27/06; B42; B42D; B42D15/00; B42D15/02; B42D15/04; B42D15/08; B65D27/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1469878A
Cited
US1957704A
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US2611630A
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US2824686A
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US3079271A
Cited
US3058758A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |