US2755865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained, instantaneously responsive fire extinguisher
Assignee: WILBUR A NELSON
•
Filing: 1954-11-15
•
Granted: 1956-07-24
•
Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Jacobs Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
A; A62; A62C; A62C13/00; A62C13/66; A62C13/72; A62C13/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A COMPACT, SELF-CONTAINED AND INSTANTANEOUSLY RESPONSIVE FIRE EXTINGUISHER ADAPTED TO PRODUCE FIRE FIGHTING FOG COMPRISING: A PRESSURE-RESISTANT STORGAE CONTAINER FOR A NONINFLAMMABLE LIQUID, SAID STORAGE CONTAINER BEING PROVIDED WITH AN OUTLET PORT FOR LIQUID AND A HEAD CLOSURE CARRYING A PRESSURE CAPSULE AND HAVING A PLUNGER MOVABLE INTO CAPSULE-PIERCING POSITION; A CONTAINER FOR COMPRESSED NONINFLAMMABLE GAS, SAID GAS CONTAINER BEING PROVIDED WITH A HEAD CLOSURE INCLUDING A SEAL FOR SAID GAS, A SEPARATE GAS OUTLET PORT AND A PLUNGER SELECTIVELY MOVABLE TO PIERCE SAID SEAL AND ESTABLISH COMMUNICATION BETWEEN SAID GAS AND GAS OUTLET PORT; MEANS FOR HOLDING SAID LIQUID STORAGE CONTAINER AND GAS CONTAINER IN ALIGNED RELATION WITH RESPECTIVE PLUNGERS IN OPPOSITION, AND WITH ONE OF SAID
Claim 2
Dependent Claim
118 words
A COMPACT, SELF-CONTAINED AND INSTANTANEOUSLY RESPONSIVE FIRE EXTINGUISHER ADAPTED TO PRODUCE FIRE FIGHTING FOG COMPRISING: A PRESSURE-RESISTANT STORGAE CONTAINER FOR A NONINFLAMMABLE LIQUID, SAID STORAGE CONTAINER BEING PROVIDED WITH AN OUTLET PORT FOR LIQUID AND A HEAD CLOSURE CARRYING A PRESSURE CAPSULE AND HAVING A PLUNGER MOVABLE INTO CAPSULE-PIERCING POSITION; A CONTAINER FOR COMPRESSED NONINFLAMMABLE GAS, SAID GAS CONTAINER BEING PROVIDED WITH A HEAD CLOSURE INCLUDING A SEAL FOR SAID GAS, A SEPARATE GAS OUTLET PORT AND A PLUNGER SELECTIVELY MOVABLE TO PIERCE SAID SEAL AND ESTABLISH COMMUNICATION BETWEEN SAID GAS AND GAS OUTLET PORT; MEANS FOR HOLDING SAID LIQUID STORAGE CONTAINER AND GAS CONTAINER IN ALIGNED RELATION WITH RESPECTIVE PLUNGERS IN OPPOSITION, AND WITH ONE OF SAID
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |