US3024746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Book sewing machine
Assignee: Brock and Rankin Inc
•
Filing: 1958-04-01
•
Granted: 1962-03-13
•
Expires: 1978-04-01
Abstract
No abstract record available.
Inventors
- 👤 William B Hildmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
B; B42; B42B; B42B2/00; B42B2/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US919006A
Cited
US1441997A
Cited
US1602380A
Cited
US1961103A
Cited
US1888775A
Cited
US2217967A
Cited
US2207973A
Cited
US2334265A
Cited
US2847113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |