Patent US3491787A successfully refreshed from Google Patents.
US3491787A
Expired / Lapsed
US
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Self-restarting siphon
Assignee: Warner Lambert Co LLC
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Filing: 1967-10-19
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Granted: 1970-01-27
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Expires: 1987-10-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Braun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:49
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2713; Y10T137/2842
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |