Patent US1984766A successfully refreshed from Google Patents.
Patent US2603426A successfully refreshed from Google Patents.
US2603426A
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Double reverse spring lock for paper rolls
Assignee: Individual
•
Filing: 1949-12-28
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Granted: 1952-07-15
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Expires: 1969-12-28
Abstract
No abstract record available.
Inventors
- 👤 Norman A Hackney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:05
CPC Classifications
A; A47; A47K; A47K10/00; A47K10/16; A47K10/18; A47K10/22; A47K10/24; A47K10/32; A47K10/34; A47K10/38; B; B65; B65H; B65H16/00; B65H16/02; B65H16/06; A47K2010/3253; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/413; B65H2301/4136; B65H2301/41366; B65H2301/413665
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |