US721577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device for gas-tube connections.
Assignee: Individual
•
Filing: 1902-07-26
•
Granted: 1903-02-24
•
Expires: 1922-07-26
Abstract
No abstract record available.
Inventors
- 👤 Isidor Lindner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/107; F16L27/11; F16L27/111; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/398; Y10T24/44; Y10T24/44017; Y10T24/44641; Y10T24/44744; Y10T24/44752
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) | 1906-02-23 | 1906-08-25 | 1907-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-02-23 | 1910-08-25 | 1911-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-02-23 | 1914-08-25 | 1915-02-24 | $7700.00 | Window Closed / Lapsed |