US1485913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-saving safety device
Assignee: Individual
•
Filing: 1921-02-23
•
Granted: 1924-03-04
•
Expires: 1941-02-23
Abstract
No abstract record available.
Inventors
- 👤 Gottlieb Carl Julius Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:09
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/005; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1707; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7769
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-03-04 | 1927-09-03 | 1928-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-04 | 1931-09-03 | 1932-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-04 | 1935-09-03 | 1936-03-04 | $7700.00 | Window Closed / Lapsed |