US3397871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonator
Assignee: HASSELBERG Inc
•
Filing: 1965-10-22
•
Granted: 1968-08-20
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 William J Hasselberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:25
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/236; B01F23/237; B01F23/2376; B01F23/23762; B01F25/00; B01F25/30; B01F25/31; B01F25/313; B01F25/3131; B01F25/3132; B01F2101/00; B01F2101/06; B01F2101/15; Y; Y10; Y10S; Y10S261/00; Y10S261/07; Y10S261/75
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US531356A
Cited
US1405775A
Cited
US2303716A
Cited
US2378029A
Cited
US3064680A
Cited
US3256802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |