US2671373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supplemental accordion support
Assignee: Individual
•
Filing: 1950-06-01
•
Granted: 1954-03-09
•
Expires: 1970-06-01
Abstract
No abstract record available.
Inventors
- 👤 Sanzone Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:45
CPC Classifications
G; G10; G10G; G10G5/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1310567A
Cited
US945520A
Cited
US2036545A
Cited
US2163859A
Cited
US2218142A
Cited
US2203234A
Cited
US2204028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-08 | 1957-09-07 | 1958-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-08 | 1961-09-07 | 1962-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-08 | 1965-09-07 | 1966-03-09 | $7700.00 | Window Closed / Lapsed |