US676950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating apparatus.
Assignee: Bay State Electric Heat & Light Co
•
Filing: 1898-10-03
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Granted: 1901-06-25
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Expires: 1918-10-03
Abstract
No abstract record available.
Inventors
- 👤 Gardner C Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:06
CPC Classifications
F; F28; F28D; F28D11/00; F28D11/02; F28D11/04; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/138
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) | 1904-06-24 | 1904-12-24 | 1905-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-06-24 | 1908-12-24 | 1909-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-06-24 | 1912-12-24 | 1913-06-25 | $7700.00 | Window Closed / Lapsed |