US3093129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heater
Assignee: Individual
•
Filing: 1961-09-06
•
Granted: 1963-06-11
•
Expires: 1981-09-06
Abstract
No abstract record available.
Inventors
- 👤 Jr William J Pickard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:59
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/20; F24B1/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2614553A
Cited
US826705A
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US888109A
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US1160894A
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US1213503A
Cited
US1345807A
Cited
US1455915A
Cited
US1919407A
Cited
US1836314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |