Patent US1593439A successfully refreshed from Google Patents.
US3530228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric guitar piezoelectric transducer bridge with replaceable string height adjustors
Assignee: DH Baldwin Co
•
Filing: 1968-04-23
•
Granted: 1970-09-22
•
Expires: 1988-04-23
Abstract
No abstract record available.
Inventors
- 👤 Robert C Scherer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:09
CPC Classifications
G; G10; G10H; G10H3/00; G10H3/12; G10H3/14; G10H3/18; G10H3/185; G10H2220/00; G10H2220/461; G10H2220/465; G10H2220/471; G10H2220/485; G10H2220/525; Y; Y10; Y10S; Y10S84/00; Y10S84/24
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2764052A
Cited
DE931689C
Cited
US3066567A
Cited
US3073203A
Cited
US3301936A
Cited
US3396284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |