Patent US3526984A successfully refreshed from Google Patents.
US3526984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighted fireplace and fire noise simulator
Assignee: Drum Fire Inc
•
Filing: 1968-03-22
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Granted: 1970-09-08
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Expires: 1988-03-22
Abstract
No abstract record available.
Inventors
- 👤 Herman Nielsen
- 👤 Stephen S Valliant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:42
CPC Classifications
F; F21; F21S; F21S10/00; F21S10/04; F24; F24C; F24C7/00; F24C7/002; F24C7/004; F21W; F21W2131/00; F21W2131/40; F21W2131/406
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR11520E
Cited
US2733528A
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USRE24399E
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CA634194A
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US928070A
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US1004060A
Cited
US1100833A
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US2684244A
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US2984032A
Cited
US3120717A
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US3120718A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-07 | 1974-03-09 | 1974-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-07 | 1978-03-09 | 1978-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-07 | 1982-03-09 | 1982-09-08 | $7700.00 | Window Closed / Lapsed |