US2727607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed transmission apparatus
Assignee: ESTHER C LANGER
•
Filing: 1950-09-23
•
Granted: 1955-12-20
•
Expires: 1970-09-23
Abstract
No abstract record available.
Inventors
- 👤 Andrew J Colmerauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:01
CPC Classifications
F; F16; F16D; F16D31/00; F16D31/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1307488A
Cited
US873621A
Cited
US979272A
Cited
US1030463A
Cited
US2086889A
Cited
US2066450A
Cited
US2418625A
Cited
US2482313A
Cited
US2550373A
Cited
US2644561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |