US2677937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizer
Assignee: Individual
•
Filing: 1949-09-21
•
Granted: 1954-05-11
•
Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Sam P Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:03
CPC Classifications
F; F02; F02M; F02M21/00; F02M21/02; F02M21/06; F02M21/0218; F02M21/023; F02M21/0239; F02M31/00; F02M31/02; F02M31/16; F02M31/18; F02D; F02D19/00; F02D19/02; F02D19/026; F02D19/027; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12; Y02T10/30; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2572
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |