US2668202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture responsive signaling device
Assignee: Individual
•
Filing: 1952-08-02
•
Granted: 1954-02-02
•
Expires: 1972-08-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin D Kaplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:19
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/12; G01N27/121; A; A61; A61F; A61F5/00; A61F5/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1772232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |