US2731029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom fill apparatus
Assignee: Bowser Inc
•
Filing: 1951-05-04
•
Granted: 1956-01-17
•
Expires: 1971-05-04
Abstract
No abstract record available.
Inventors
- 👤 Howard E Rittenhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:59
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/36; B67D7/362; F; F16; F16K; F16K21/00; F16K21/04; F16K21/18; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/36; Y10T137/3631; Y10T137/7287; Y10T137/731; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87499
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US254944A
Cited
US659311A
Cited
US931228A
Cited
US1176535A
Cited
US1302538A
Cited
US1627628A
Cited
US2235304A
Cited
US2328323A
Cited
US2384628A
Cited
US2505093A
Cited
US2443679A
Cited
US2548368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |