Patent US2609638A successfully refreshed from Google Patents.
US2609638A
Expired / Lapsed
US
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Construction toy connector
Assignee: Individual
•
Filing: 1946-05-22
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Granted: 1952-09-09
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Expires: 1966-05-22
Abstract
No abstract record available.
Inventors
- 👤 Ray S Lindenmeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:50
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/107; G; G09; G09B; G09B25/00; G09B25/02; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/345; Y10T403/347; Y10T403/53; Y10T403/55; Y10T403/556
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |