Patent US1623765A successfully refreshed from Google Patents.
Patent US2936828A successfully refreshed from Google Patents.
US2936828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire regrooving machine
Assignee: Individual
•
Filing: 1956-04-18
•
Granted: 1960-05-17
•
Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Charles G Richner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:08
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29D30/68
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US376467A
Cited
US2735327A
Cited
US337973A
Cited
US849768A
Cited
US1187629A
Cited
US1713488A
Cited
US1886834A
Cited
US2116512A
Cited
US1916258A
Cited
US2015635A
Cited
US2192130A
Cited
US2178665A
Cited
US2164958A
Cited
US2362967A
Cited
US2397863A
Cited
US2475117A
Cited
US2713283A
Cited
US2529777A
Cited
US2525929A
Cited
US2594932A
Cited
US2566824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |