Patent US4235273A successfully refreshed from Google Patents.
Patent US5569203A successfully refreshed from Google Patents.
Patent US2738867A successfully refreshed from Google Patents.
US2738867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article transfer arrangements
Assignee: PUNCH ENGINEERING PTY Ltd
•
Filing: 1951-11-20
•
Granted: 1956-03-20
•
Expires: 1971-11-20
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Skillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:40
CPC Classifications
B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US504394A
Cited
US1613552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |