US3016446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating appliance
Assignee: Individual
•
Filing: 1958-11-28
•
Granted: 1962-01-09
•
Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Raymond B Kalbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:18
CPC Classifications
A; A47; A47J; A47J41/00; A47J41/0038; A47J41/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308023A
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US840060A
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US1997844A
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US2114396A
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US2178397A
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US2209430A
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US2378772A
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US2432169A
Cited
US2411677A
Cited
US2554745A
Cited
US2853968A
Cited
US2853076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |