Patent US1577974A successfully refreshed from Google Patents.
US1577974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank
Assignee: PROTANE Corp
•
Filing: 1924-09-05
•
Granted: 1926-03-23
•
Expires: 1944-09-05
Abstract
No abstract record available.
Inventors
- 👤 John M Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:53
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/12; F17C13/123; B; B65; B65D; B65D7/00; B65D7/12; B65D7/34; B65D7/38; B65D7/42; B65D7/48; F17C2201/00; F17C2201/01; F17C2201/0104; F17C2201/03; F17C2201/032; F17C2203/00; F17C2203/01; F17C2203/011; F17C2203/012; F17C2205/00; F17C2205/01; F17C2205/0153; F17C2205/018; F17C2209/00; F17C2209/22; F17C2209/221; F17C2221/00; F17C2221/03; F17C2221/032; F17C2223/00; F17C2223/01; F17C2223/0107; F17C2223/0123; F17C2223/03; F17C2223/036; F17C2260/00; F17C2260/01; F17C2260/011; F17C2260/02; F17C2260/021
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) | 1929-03-22 | 1929-09-21 | 1930-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-03-22 | 1933-09-21 | 1934-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-03-22 | 1937-09-21 | 1938-03-23 | $7700.00 | Window Closed / Lapsed |