US3438323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article controlled rotary endorser
Assignee: Bell and Howell Co
•
Filing: 1965-10-24
•
Granted: 1969-04-15
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Louis A Smitzer
- 👤 Adolph J Gawin
- 👤 Chester S Rempala
- 👤 Jerome C Zis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:57
CPC Classifications
B; B41; B41L; B41L35/00; B41L35/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1556218A
Cited
US869783A
Cited
US2743671A
Cited
FR1041086A
Cited
US2889767A
Cited
US3092019A
Cited
US3335661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-14 | 1972-10-14 | 1973-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-14 | 1976-10-14 | 1977-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-14 | 1980-10-14 | 1981-04-15 | $7700.00 | Window Closed / Lapsed |