Patent US4311981A successfully refreshed from Google Patents.
US730102A
Expired / Lapsed
US
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Pressure-plate for polishing and surfacing plastic material.
Assignee: Individual
•
Filing: 1900-03-17
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Granted: 1903-06-02
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Expires: 1920-03-17
Abstract
No abstract record available.
Inventors
- 👤 Vincent L Dunne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:55
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/004; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934; Y10S428/935; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12639; Y10T428/12646; Y10T428/12653; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/1291; Y10T428/12937
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1906-06-01 | 1906-12-01 | 1907-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-06-01 | 1910-12-01 | 1911-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-06-01 | 1914-12-01 | 1915-06-02 | $7700.00 | Window Closed / Lapsed |