Patent US918193A successfully refreshed from Google Patents.
US918193A
Expired / Lapsed
US
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Stay-bolt for steam-boilers.
Assignee: Individual
•
Filing: 1908-08-01
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Granted: 1909-04-13
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Expires: 1928-08-01
Abstract
No abstract record available.
Inventors
- 👤 Franklin M Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:15
CPC Classifications
F; F22; F22B; F22B7/00; F22B7/16; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12361; Y10T428/12389
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) | 1912-04-12 | 1912-10-12 | 1913-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-04-12 | 1916-10-12 | 1917-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-04-12 | 1920-10-12 | 1921-04-13 | $7700.00 | Window Closed / Lapsed |