US3429549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metering device for flexible tubes
Assignee: Davol Rubber Co
•
Filing: 1966-11-22
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Granted: 1969-02-25
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Expires: 1986-11-22
Abstract
No abstract record available.
Inventors
- 👤 Reinold E Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:42
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/22; A61M39/28; A61M39/288; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US888893A
Cited
US2112592A
Cited
US2189865A
Cited
US2565605A
Cited
US2844351A
Cited
US3371906A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |