US3067339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow gating
Assignee: Individual
•
Filing: 1959-01-15
•
Granted: 1962-12-04
•
Expires: 1979-01-15
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang J Poppelbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:50
CPC Classifications
H; H03; H03K; H03K21/00; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/286
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2785304A
Cited
US2816226A
Cited
US2867734A
Cited
US2838664A
Cited
US2798983A
Cited
US2931922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |