US3389936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seats
Assignee: Individual
•
Filing: 1966-11-18
•
Granted: 1968-06-25
•
Expires: 1986-11-18
Abstract
No abstract record available.
Inventors
- 👤 Drabert Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/16; A47C7/029; A47C7/36; A47C7/40; A47C7/46; C; C09; C09B; C09B45/00; C09B45/01
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) | 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 |