Patent US3125300A successfully refreshed from Google Patents.
US3125300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
roche
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:09
CPC Classifications
F; F21; F21S; F21S9/00; F21S9/02; F21S9/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A SAFETY LANTERN COMPRISING IN DETACHABLE ASSEMBLY, A PLASTIC CASING HAVING DETACHABLE FRONT, REAR AND TOP SECTIONS; SAID FRONT SECTION AND REAR SECTION HAVING REGISTERING CORNER CHANNEL MEANS, CO-OPERABLE BOLTS FOR SUCH CHANNEL MEANS AND GASKET MEANS BETWEEN SAID SECTIONS; SAID TOP SECTION BEING ATTACHABLE TO THE TOP OF SAID REAR SECTION BY BOLT AND SAID GASKET MEANS; SAID FRONT SECTION HAVING A REAR OPENING AND HAVING A FRONT OPENING AGAINST WHICH A LAMP IS HELD BY MEANS INCLUDING A GASKET; SAID REAR SECTION HAVING A FRONT OPENING, A TOP OPENING, AND SPACE FOR INSERTION OF A BATTERY; SAID TOP SECTION HAVING A BOTTOM OPENING AND CONTAINING A RELAY SWITCH CONNECTIBLE TO AN EXTERNAL SOURCE OF CURRENT; CIRCUIT MEANS BEING PROVIDED IN CONJUNCTION WITH SAID RELAY SWITCH TO PROVIDE CURRENT FROM A BATTERY TO SAID LAMP WHEN THERE IS NO CURRENT IN SAID EXTERNAL LEAD.
Claim 2
Dependent Claim
145 words
A SAFETY LANTERN COMPRISING IN DETACHABLE ASSEMBLY, A PLASTIC CASING HAVING DETACHABLE FRONT, REAR AND TOP SECTIONS; SAID FRONT SECTION AND REAR SECTION HAVING REGISTERING CORNER CHANNEL MEANS, CO-OPERABLE BOLTS FOR SUCH CHANNEL MEANS AND GASKET MEANS BETWEEN SAID SECTIONS; SAID TOP SECTION BEING ATTACHABLE TO THE TOP OF SAID REAR SECTION BY BOLT AND SAID GASKET MEANS; SAID FRONT SECTION HAVING A REAR OPENING AND HAVING A FRONT OPENING AGAINST WHICH A LAMP IS HELD BY MEANS INCLUDING A GASKET; SAID REAR SECTION HAVING A FRONT OPENING, A TOP OPENING, AND SPACE FOR INSERTION OF A BATTERY; SAID TOP SECTION HAVING A BOTTOM OPENING AND CONTAINING A RELAY SWITCH CONNECTIBLE TO AN EXTERNAL SOURCE OF CURRENT; CIRCUIT MEANS BEING PROVIDED IN CONJUNCTION WITH SAID RELAY SWITCH TO PROVIDE CURRENT FROM A BATTERY TO SAID LAMP WHEN THERE IS NO CURRENT IN SAID EXTERNAL LEAD.
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) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |