Patent US637668A successfully refreshed from Google Patents.
US637668A
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US
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Spring-handle for brooms.
Assignee: PARIS SPRING MANUFACTURING Co
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Filing: 1899-05-20
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Granted: 1899-11-21
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Expires: 1919-05-20
Abstract
No abstract record available.
Inventors
- 👤 Mastin Lee Rison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:22
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B1/1903; E04B1/1906; A; A47; A47L; A47L13/00; A47L13/10; A47L13/20; A47L13/24; A47L13/25; A47L13/252; Y; Y10; Y10T; Y10T403/00; Y10T403/45; Y10T403/459; Y10T74/00; Y10T74/20; Y10T74/20006
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) | 1902-11-21 | 1903-05-23 | 1903-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1906-11-21 | 1907-05-23 | 1907-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1910-11-21 | 1911-05-23 | 1911-11-22 | $7700.00 | Window Closed / Lapsed |