US3389716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draft beer cleaning and flushing apparatus
Assignee: Individual
•
Filing: 1965-07-19
•
Granted: 1968-06-25
•
Expires: 1985-07-19
Abstract
No abstract record available.
Inventors
- 👤 Wilburn Sampson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:31
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B67; B67D; B67D1/00; B67D1/08; B67D1/0829; B67D1/0831; B67D1/0832; B67D1/0834; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2120865A
Cited
US2237014A
Cited
US2314100A
Cited
US3044483A
Cited
US3115149A
Cited
US3115150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |