US3245068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calibrated body fluid detection device
Assignee: EDWARD W MCGRATH
•
Filing: 1963-08-02
•
Granted: 1966-04-05
•
Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Stanley P Wegryn
- 👤 Robert J Brighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
G; G08; G08B; G08B21/00; G08B21/18; G08B21/20; A; A61; A61B; A61B5/00; A61B5/02; A61B5/02042; A61B5/20; A61B5/202; A61B5/207; A61B5/208; A61B5/42; A61B5/4261; A61B5/4266
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN ALARM DEVICE FOR DETECTING ABBNORMAL FLOW OF FLUIDS FROM THE BODY WHICH COMPRISES A THIN SHEET OF ABSORPTIVE NONELECTRICALLY CONDUCTIVE MATERIAL CONTAINING A PAIR OF CONDUCTORS OF GRID-LIKE CONFIGURATION, EACH GRID COMPRISING AN EDGE LINE NEAR RESPECTIVE OPPOSITE EDGES OF THE ABSORPTIVE MATERIAL FROM WHICH FINGERS EXTEND ACROSS THE ABSORPTIVE MATERIAL THE SAID FINGERS HAVING A RESISTANCE FROM EDGE LINE TO TIP OF FINGERS OF 100001,000,000 OHMS, AND BEING INTERDIGITATED AND SEPARATED FROM EACH OTHER AND FROM THE OPPOSITE EDGE LINE AND BRIDGED ONLY BY FLUID CONTACTING THE ABSORPTIVE MATERIAL, MEANS FOR ELECTRICALLY CONNECTING EACH OF A PAIRR OF ALARM CIRCUIT LEADS TO A RESPECTIVE ONE OF SAID PAIR OF EDGE LINES, THE ELECTRIC ALARM CIRCUIT BEING SET TO ACTUATE THE ALARM WHEN THE RESISTANCE DROPS TO LESS THAN A SET AMOUNT, THE SET AMUNT BEING LESS THAN THE RESISTANCE FOR ONE ELECTRICAL PATH BETWEEN THE EDGE LINES.
Claim 2
Dependent Claim
149 words
AN ALARM DEVICE FOR DETECTING ABBNORMAL FLOW OF FLUIDS FROM THE BODY WHICH COMPRISES A THIN SHEET OF ABSORPTIVE NONELECTRICALLY CONDUCTIVE MATERIAL CONTAINING A PAIR OF CONDUCTORS OF GRID-LIKE CONFIGURATION, EACH GRID COMPRISING AN EDGE LINE NEAR RESPECTIVE OPPOSITE EDGES OF THE ABSORPTIVE MATERIAL FROM WHICH FINGERS EXTEND ACROSS THE ABSORPTIVE MATERIAL THE SAID FINGERS HAVING A RESISTANCE FROM EDGE LINE TO TIP OF FINGERS OF 100001,000,000 OHMS, AND BEING INTERDIGITATED AND SEPARATED FROM EACH OTHER AND FROM THE OPPOSITE EDGE LINE AND BRIDGED ONLY BY FLUID CONTACTING THE ABSORPTIVE MATERIAL, MEANS FOR ELECTRICALLY CONNECTING EACH OF A PAIRR OF ALARM CIRCUIT LEADS TO A RESPECTIVE ONE OF SAID PAIR OF EDGE LINES, THE ELECTRIC ALARM CIRCUIT BEING SET TO ACTUATE THE ALARM WHEN THE RESISTANCE DROPS TO LESS THAN A SET AMOUNT, THE SET AMUNT BEING LESS THAN THE RESISTANCE FOR ONE ELECTRICAL PATH BETWEEN THE EDGE LINES.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |