US3434689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel-type form system with gasket strips
Assignee: DS Brown Co
•
Filing: 1968-03-13
•
Granted: 1969-03-25
•
Expires: 1988-03-13
Abstract
No abstract record available.
Inventors
- 👤 Owren J Aftreth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:12
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US894549A
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US1945124A
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US2213159A
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US2236616A
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US2170637A
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US2229317A
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US2447670A
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US2602210A
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US2898659A
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US2953835A
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US2991532A
Cited
US3047931A
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US3288427A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |