US2790445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe stem
Assignee: Individual
•
Filing: 1953-04-28
•
Granted: 1957-04-30
•
Expires: 1973-04-28
Abstract
No abstract record available.
Inventors
- 👤 Harry W Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:56
CPC Classifications
A; A24; A24F; A24F1/00; A24F1/02; A24F1/04; A24F1/12; A24F1/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US39987A
Cited
US403550A
Cited
US702249A
Cited
US941027A
Cited
US989639A
Cited
US1134917A
Cited
GB159562A
Cited
US1455539A
Cited
US1505861A
Cited
GB267206A
Cited
US1892324A
Cited
US1908630A
Cited
US2195522A
Cited
US2516437A
Cited
US2641263A
Cited
US2667175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-29 | 1960-10-29 | 1961-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-29 | 1964-10-29 | 1965-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-29 | 1968-10-29 | 1969-04-30 | $7700.00 | Window Closed / Lapsed |