US2873708A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1956-08-20
•
Granted: 1959-02-17
•
Expires: 1976-08-20
Abstract
No abstract record available.
Inventors
- 👤 Boltach Helen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:27
CPC Classifications
A; A44; A44B; A44B9/00; A44B9/02; A44B9/04; Y; Y10; Y10T; Y10T24/00; Y10T24/46; Y10T24/468; Y10T24/4688
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |