US2721672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Can cover and punch
Assignee: Individual
•
Filing: 1954-08-06
•
Granted: 1955-10-25
•
Expires: 1974-08-06
Abstract
No abstract record available.
Inventors
- 👤 Karl H Fahle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:33
CPC Classifications
B; B67; B67B; B67B7/00; B67B7/24; B67B7/26; B67B7/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE427496C
Cited
US731613A
Cited
US810817A
Cited
US1010196A
Cited
US1260771A
Cited
US1863853A
Cited
US2118953A
Cited
US2670107A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-24 | 1959-04-25 | 1959-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-24 | 1963-04-25 | 1963-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-24 | 1967-04-25 | 1967-10-25 | $7700.00 | Window Closed / Lapsed |