US2873535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drafting apparatus
Assignee: General Dynamics Corp
•
Filing: 1955-09-27
•
Granted: 1959-02-17
•
Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 Garland R Gordon
- 👤 Jr Guy Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:37
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 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 |