US3433456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser valves
Assignee: Waldorf Paper Products Co
•
Filing: 1965-10-19
•
Granted: 1969-03-18
•
Expires: 1985-10-19
Abstract
No abstract record available.
Inventors
- 👤 Oscar G Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:23
CPC Classifications
B; B67; B67D; B67D3/00; B67D3/04; B67D3/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US358219A
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US401288A
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US987633A
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US1078213A
Cited
US2310599A
Cited
US2744665A
Cited
US2713988A
Cited
US2792669A
Cited
US2912173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |