US3473556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beer keg tapping device and seal
Assignee: Silgan Dispensing Systems Slatersville LLC
•
Filing: 1967-04-03
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Granted: 1969-10-21
•
Expires: 1987-04-03
Abstract
No abstract record available.
Inventors
- 👤 Keith M Johnson
- 👤 Robert P Marine
- 👤 Edward G Akers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/0829; B67D1/0831; B67D1/0832; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/314; Y10T137/598; Y10T137/612; Y10T137/613; Y10T137/6137; Y10T137/7722; Y10T137/7837; Y10T137/7866; Y10T137/7867; Y10T137/7868; Y10T137/8811
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US533708A
Cited
US581877A
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US2498831A
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US2645449A
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US2881011A
Cited
US2799292A
Cited
US2932531A
Cited
GB884698A
Cited
US3266822A
Cited
US3361152A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |