US3158015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial candle
Assignee: HOLLWICK Inc
•
Filing: 1961-12-11
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Granted: 1964-11-24
•
Expires: 1981-12-11
Abstract
No abstract record available.
Inventors
- 👤 Sr Frederick W Renwick
- 👤 Bush Grace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:27
CPC Classifications
F; F23; F23D; F23D3/00; F23D3/02; F23D3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN AN ARTIFICIAL CANDLE INCLUDING A CASING DEFINING A FUEL RESERVOIR AND HAVING A TOP WALL FORMED WITH A NECK, A CAP ON SAID NECK, A WICK HOLDER CARRIED BY SAID CAP AND HAVING A WICK OPENING AND A SNUFFER SCREWED ON TO SAID WICK HOLDER, THE IMPROVEMENT CONSISTING OF: A WICK ASSEMBLY COMPRISING AN OUTER FABRIC SLEEVE HOUSED WITHIN SAID CASING AND INNER TWIN CORDS HOUSED WITHIN SAID CASING AND PASSING THROUGH AND COMPLETELY FILLING SAID WICK OPENING.
Claim 2
Dependent Claim
79 words
IN AN ARTIFICIAL CANDLE INCLUDING A CASING DEFINING A FUEL RESERVOIR AND HAVING A TOP WALL FORMED WITH A NECK, A CAP ON SAID NECK, A WICK HOLDER CARRIED BY SAID CAP AND HAVING A WICK OPENING AND A SNUFFER SCREWED ON TO SAID WICK HOLDER, THE IMPROVEMENT CONSISTING OF: A WICK ASSEMBLY COMPRISING AN OUTER FABRIC SLEEVE HOUSED WITHIN SAID CASING AND INNER TWIN CORDS HOUSED WITHIN SAID CASING AND PASSING THROUGH AND COMPLETELY FILLING SAID WICK OPENING.
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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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |