Patent US1259945A successfully refreshed from Google Patents.
US1259945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam-boiler.
Assignee: Individual
•
Filing: 1915-01-16
•
Granted: 1918-03-19
•
Expires: 1935-01-16
Abstract
No abstract record available.
Inventors
- 👤 Richard A Whittingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:09
CPC Classifications
F; F22; F22B; F22B23/00; F22B23/02; F23; F23B; F23B1/00; F23B1/02; F23B1/04; F23B1/06; F23B2700/00; F23B2700/01; Y; Y10; Y10S; Y10S122/00; Y10S122/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1921-03-18 | 1921-09-17 | 1922-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-03-18 | 1925-09-17 | 1926-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-03-18 | 1929-09-17 | 1930-03-19 | $7700.00 | Window Closed / Lapsed |