US2610827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary swivel
Assignee: BETHLEHEM SUPPLY Co
•
Filing: 1948-07-16
•
Granted: 1952-09-16
•
Expires: 1968-07-16
Abstract
No abstract record available.
Inventors
- 👤 Fagg Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:43
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE22825E
Cited
US904933A
Cited
US2029598A
Cited
US2036537A
Cited
US2119244A
Cited
US2105754A
Cited
US2220120A
Cited
US2394800A
Cited
US2459472A
Cited
US2485940A
Cited
US2472061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |