Patent US4404165A successfully refreshed from Google Patents.
US3517239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High speed commutator and brush assembly
Assignee: RTX Corp
•
Filing: 1966-08-31
•
Granted: 1970-06-23
•
Expires: 1986-08-31
Abstract
No abstract record available.
Inventors
- 👤 Edward J Sedlock
- 👤 Charles F Paquette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:48
CPC Classifications
H; H02; H02K; H02K9/00; H02K9/28; H01; H01R; H01R39/00; H01R39/02; H01R39/04; H01R39/06; H02K13/00; H02K13/003
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |