Patent US2552434A successfully refreshed from Google Patents.
US2552434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposed filing and record keeping equipment
Assignee: WATSON Mfg CO Inc
•
Filing: 1948-02-26
•
Granted: 1951-05-08
•
Expires: 1968-02-26
Abstract
No abstract record available.
Inventors
- 👤 Rodney K Klapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
A; A47; A47B; A47B63/00; A47B63/06; A47B53/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR683312A
Cited
US2412219A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |