US2607580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pendulum scale
Assignee: L F GRAMMES AND SONS Inc
•
Filing: 1948-06-04
•
Granted: 1952-08-19
•
Expires: 1968-06-04
Abstract
No abstract record available.
Inventors
- 👤 Morris W Romig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:20
CPC Classifications
G; G01; G01G; G01G1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US53050A
Cited
US221757A
Cited
US599529A
Cited
US906074A
Cited
US1707683A
Cited
US2083948A
Cited
GB468100A
Cited
DE676942C
Cited
US2508011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |