US3371985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizer device
Assignee: EDWARD W WYKA
•
Filing: 1964-09-16
•
Granted: 1968-03-05
•
Expires: 1984-09-16
Abstract
No abstract record available.
Inventors
- 👤 Edward W Wyka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:33
CPC Classifications
A; A47; A47L; A47L7/00; A47L7/04; A61; A61L; A61L2103/00; A61L2103/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1817533A
Cited
GB350055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |