Patent US1350320A successfully refreshed from Google Patents.
US1350320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed-water heater
Assignee: Individual
•
Filing: 1916-09-25
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Granted: 1920-08-24
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Expires: 1936-09-25
Abstract
No abstract record available.
Inventors
- 👤 Luther D Lovekin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:50
CPC Classifications
F; F22; F22D; F22D1/00; F22D1/42; Y; Y10; Y10S; Y10S165/00; Y10S165/184; Y10S165/205; Y10S165/207; Y10S165/212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1923-08-24 | 1924-02-23 | 1924-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-08-24 | 1928-02-23 | 1928-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-08-24 | 1932-02-23 | 1932-08-24 | $7700.00 | Window Closed / Lapsed |