US2720728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass fiber drawing apparatus
Assignee: International Motors LLC
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Filing: 1951-07-12
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Granted: 1955-10-18
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Expires: 1971-07-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Courtney
- 👤 Adelbert C Radtke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:44
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/02; B65H51/04; B65H51/08; B65H51/10; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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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) | 1958-10-17 | 1959-04-18 | 1959-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-17 | 1963-04-18 | 1963-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-17 | 1967-04-18 | 1967-10-18 | $7700.00 | Window Closed / Lapsed |