Patent US3373539A successfully refreshed from Google Patents.
US3373539A
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US
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Assignee: USM Corp
•
Filing: 1965-08-18
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Granted: 1968-03-19
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Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 Engelbert A Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:24
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/60; E06B3/605; Y; Y10; Y10T; Y10T24/00; Y10T24/30; Y10T24/304; Y10T24/307
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2268269A
Cited
US2367109A
Cited
US2358837A
Cited
US2364880A
Cited
US2709390A
Cited
US3274740A
Cited
US3241277A
Cited
US3239988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |