US3016738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for supervising the heat development and heat transfer in boilers, furnaces and heat consumers
Assignee: Individual
•
Filing: 1955-09-27
•
Granted: 1962-01-16
•
Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Eule Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:30
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/06; F22B35/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US300202A
Cited
GB191422526A
Cited
US1640801A
Cited
US1430731A
Cited
US1349409A
Cited
US2555250A
Cited
GB667171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |